<!DOCTYPE html>
<html>
<head>
  <meta charset="utf-8">
	<title>Ping Pong Delay</title>

	<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
	<link rel="icon" type="image/png" sizes="174x174" href="./favicon.png">

	<script src="https://cdnjs.cloudflare.com/ajax/libs/webcomponentsjs/2.4.3/webcomponents-bundle.js"></script>
	<link href="https://fonts.googleapis.com/css?family=Material+Icons&display=block" rel="stylesheet"/>
	<script src="../build/Tone.js"></script>
	<script src="./js/tone-ui.js"></script>
	<script src="./js/components.js"></script>
</head>
<body>
	<tone-example label="Ping Pong Delay">
		<tone-loader></tone-loader>

		<div slot="explanation">
			A Ping Pong Delay is a stereo feedback delay where the delay bounces back and forth between the left and right channels. Hit the button to trigger a snare sample into the effect. 
			<br><br>
			<a href="https://tonejs.github.io/docs/PingPongDelay">Tone.PingPongDelay</a> docs.
		</div>

		<div id="content">
			<tone-momentary-button></tone-momentary-button>
		</div>
	</tone-example>
	
	<script type="text/javascript">
		// the feedback delay
		const feedbackDelay = new Tone.PingPongDelay({
			delayTime: "8n",
			feedback: 0.6,
			wet: 0.5
		}).toDestination();

		// play a snare sound through it
		const player = new Tone.Player("https://tonejs.github.io/audio/drum-samples/CR78/snare.mp3").connect(feedbackDelay);

		const toneMeter = new Tone.Meter({ channels: 2 });
		feedbackDelay.connect(toneMeter);

		meter({
			tone: toneMeter,
			parent: document.querySelector("#content")
		});

		document.querySelector("tone-momentary-button").addEventListener("down", () => player.start());
		document.querySelector("tone-momentary-button").addEventListener("up", () => player.stop());
	</script>
</body>
</html>
